Finding the Third Proportional to 141,152 and 200,640

Step by Step Solution

1. Step 1: Write the proportion equation
   141,152 : 200,640 = 200,640 : x
2. Step 2: Convert to fraction form
   141,152/200,640 = 200,640/x
3. Step 3: Cross multiply
   141,152x = 200,640 × 200,640
4. Step 4: Simplify right side
   141,152x = 40,256,409,600
5. Step 5: Solve for x
   x = 40,256,409,600/141,152
6. Step 6: Final answer
   x = 285,199.00